TESTING/LIN/dchkqr.f(3)

NAME
TESTING/LIN/dchkqr.f

SYNOPSIS

  Functions/Subroutines
subroutine dchkqr (dotype, nm, mval, nn, nval, nnb, nbval, nxval, nrhs, thresh, tsterr, nmax, a, af, aq, ar, ac, b, x, xact, tau, work, rwork, iwork, nout)
DCHKQR

Function/Subroutine Documentation

  subroutine dchkqr (logical, dimension( * ) dotype, integer nm, integer, dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer, dimension( * ) nxval, integer nrhs, double precision thresh, logical tsterr, integer nmax, double precision, dimension( * ) a, double precision, dimension( * ) af, double precision, dimension( * ) aq, double precision, dimension( * ) ar, double precision, dimension( * ) ac, double precision, dimension( * ) b, double precision, dimension( * ) x, double precision, dimension( * ) xact, double precision, dimension( * ) tau, double precision, dimension( * ) work, double precision, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)

DCHKQR

Purpose:

    !>
    !> DCHKQR tests DGEQRF, DORGQR and DORMQR.
    !>

Parameters
    DOTYPE

    !>          DOTYPE is LOGICAL array, dimension (NTYPES)
    !>          The matrix types to be used for testing.  Matrices of type j
    !>          (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =
    !>          .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.
    !>

    NM

    !>          NM is INTEGER
    !>          The number of values of M contained in the vector MVAL.
    !>

    MVAL

    !>          MVAL is INTEGER array, dimension (NM)
    !>          The values of the matrix row dimension M.
    !>

    NN

    !>          NN is INTEGER
    !>          The number of values of N contained in the vector NVAL.
    !>

    NVAL

    !>          NVAL is INTEGER array, dimension (NN)
    !>          The values of the matrix column dimension N.
    !>

    NNB

    !>          NNB is INTEGER
    !>          The number of values of NB and NX contained in the
    !>          vectors NBVAL and NXVAL.  The blocking parameters are used
    !>          in pairs (NB,NX).
    !>

    NBVAL

    !>          NBVAL is INTEGER array, dimension (NNB)
    !>          The values of the blocksize NB.
    !>

    NXVAL

    !>          NXVAL is INTEGER array, dimension (NNB)
    !>          The values of the crossover point NX.
    !>

    NRHS

    !>          NRHS is INTEGER
    !>          The number of right hand side vectors to be generated for
    !>          each linear system.
    !>

    THRESH

    !>          THRESH is DOUBLE PRECISION
    !>          The threshold value for the test ratios.  A result is
    !>          included in the output file if RESULT >= THRESH.  To have
    !>          every test ratio printed, use THRESH = 0.
    !>

    TSTERR

    !>          TSTERR is LOGICAL
    !>          Flag that indicates whether error exits are to be tested.
    !>

    NMAX

    !>          NMAX is INTEGER
    !>          The maximum value permitted for M or N, used in dimensioning
    !>          the work arrays.
    !>

    A

    !>          A is DOUBLE PRECISION array, dimension (NMAX*NMAX)
    !>

    AF

    !>          AF is DOUBLE PRECISION array, dimension (NMAX*NMAX)
    !>

    AQ

    !>          AQ is DOUBLE PRECISION array, dimension (NMAX*NMAX)
    !>

    AR

    !>          AR is DOUBLE PRECISION array, dimension (NMAX*NMAX)
    !>

    AC

    !>          AC is DOUBLE PRECISION array, dimension (NMAX*NMAX)
    !>

    B

    !>          B is DOUBLE PRECISION array, dimension (NMAX*NRHS)
    !>

    X

    !>          X is DOUBLE PRECISION array, dimension (NMAX*NRHS)
    !>

    XACT

    !>          XACT is DOUBLE PRECISION array, dimension (NMAX*NRHS)
    !>

    TAU

    !>          TAU is DOUBLE PRECISION array, dimension (NMAX)
    !>

    WORK

    !>          WORK is DOUBLE PRECISION array, dimension (NMAX*NMAX)
    !>

    RWORK

    !>          RWORK is DOUBLE PRECISION array, dimension (NMAX)
    !>

    IWORK

    !>          IWORK is INTEGER array, dimension (NMAX)
    !>

    NOUT

    !>          NOUT is INTEGER
    !>          The unit number for output.
    !>

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 198 of file dchkqr.f.

Author

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